Filters for blood and blood components for laboratory use; Computer-controlled testing apparatus for testing filter performance, not for medical purposes; Filters for protective industrial respiratory masks, not for medical purposes; Laboratory filters; Dust mask filters being filters for protective industrial respiratory masks; Air-gas producing apparatus in laboratories in the nature of filtering machines

dust mask filters; filters for respiratory masks, not for medical purposes; testing apparatus for testing filter performance; air-gas producing apparatus in laboratories; filters for blood and blood components for laboratory use; laboratory filters

unit that humidifies and de-humidifies enclosed space and terrestrial environments